def test_link_search_by_tag():
"""Ensure that it is possible to search for a link based on tags."""
db = Database(":memory:", create=True, verbose=True)
session = db.session
function = Tag(name="function")
python = Tag(name="python")
enumerate_ = Link(name="enumerate", url="https://docs.python.org/3/enumerate.html")
enumerate_.tags.append(python)
enumerate_.tags.append(function)
malloc = Link(name="malloc", url="https://docs.c.org/c11/malloc.html")
malloc.tags.append(function)
github = Link(name="Github", url="https://github.com")
for item in [python, function, enumerate_, malloc, github]:
session.add(item)
db.commit()
links = Link.search(db, tags=["function"])
assert {l.url for l in links} == {
"https://docs.python.org/3/enumerate.html",
"https://docs.c.org/c11/malloc.html",
}
# Ensure multiple tags are ANDed
assert len(Link.search(db, tags=["function", "c"])) == 0
def add_link(filepath, url, name, tags):
db = Database(filepath, create=True)
if tags is None:
Link.add(db, name=name, url=url)
return 0
link = Link(name=name, url=url)
new_tags = []
for t in tags:
existing = Tag.get(db, name=t)
if existing is not None:
link.tags.append(existing)
continue
tag = Tag(name=t)
link.tags.append(tag)
new_tags.append(tag)
Link.add(db, items=[link], commit=False)
if len(new_tags) > 0:
Tag.add(db, items=new_tags, commit=False)
db.commit()
def test_tag_link():
"""Ensure that it is possible to associate a tag with a link."""
db = Database(":memory:", create=True, verbose=True)
session = db.session
tag = Tag(name="search-engine")
link = Link(name="Google", url="https://www.google.com/")
link.tags.append(tag)
session.add(tag)
session.add(link)
db.commit()
tag.id = 1
link = Link.get(db, 1)
assert link.tags[0] == tag
assert tag.links[0] == link